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MrRa [10]
3 years ago
7

Which of the following is NOT an example of an exact number?

Chemistry
2 answers:
Mashcka [7]3 years ago
6 0

Answer:

The desk is 84 cm long

Explanation:

Exact numbers are either defined numbers or the result of a count

hope it helps!

klemol [59]3 years ago
5 0

Answer:

the desk is 84 cm long

Explanation:

A hexagon always have 6 sides.

A tricycle always have 3 wheels. That's why it's called tri

A tables Always have 4 legs. Well in most cases.

But a desk is not always 84 cm

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if you want to see how the water molecules are split inside the thylakoid space, how many membranes would you have to cross to g
Feliz [49]

Answer:

4 biological membranes.

Explanation:

So in total, your water molecule has to go through your cell membrane, reach the outer membrane of your chloroplast and then through the inner membrane, and then lastly, it has to go through your thylakoid membrane to reach its final destination of the illumine. So in total 4 biological membranes.

3 0
1 year ago
What is the volume in ML
BabaBlast [244]

Answer:1 mL

Explanation:

4 0
3 years ago
Drawing a conclusion derived from knowledge of an established principle is called deductive reasoning.
kobusy [5.1K]
That would be correct.
4 0
4 years ago
Read 2 more answers
If heat is supplied to the stillpot too rapidly, the ability to separate two liquids by fractional distillation may be drastical
hram777 [196]

Answer: The boiling points of the two liquids are quickly exceeded

Explanation:

Fractional distillation is a method of separating a mixture of liquids where each has different boiling points.

To therefore obtain individual fractions, temperature rise of the mixture must be gradual, otherwise the boiling points of the two liquids will be quickly exceeded making collection of each fraction impossible.

4 0
3 years ago
How many moles of gas are present when you collect 35.83 mL of the gas over water at 25.3°C and 0.97 atm?
Oksana_A [137]
Use Ideal Gas equation since values are given in Pressure (P), Volume (V), Temperature (T). 
                                 P V = n R T ; n= PV / RT
You can't use 1 mole= 22.4 L equation. Temperature and pressure values are not standard. ( 1 atm, 0 

To choose the value of R ( gas constant), check out the units of other values in the equation. They are in atm,liter, kelvin, and mole.  So, its value is 0.082 L atm/ K mol.

P= 0.97 atm
V= 35.83 * 10 ⁻³ L (conversion from ml to,  just multiplied by 10 ⁻³ )
R= 0.082 L atm/ K mol
T= (25.3 + 273) K ( recall Kelvin = Celcius + 273; K= °C + 273<span>)
</span>
Substitute values into equation of  n= PV / RT

n= 
(0.97 atm) (35.83 * 10 ⁻³ L) /  (0.082 L atm/ K mol) (298.3 K)= 0.014 mole

The answer is 0.014 mole
3 0
3 years ago
Read 2 more answers
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